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WIZ107SR is not discontinued, but we do not recommend it for new designs.

Technical support for this product has officially ended.


WIZ107SR-EVB is a evaluation board for WIZ107SR.

WIZ107SR is the compact sized serial to Ethernet module using W7100A, WIZnet iMCU based on 8051 MCU core. WIZ107SR is the protocol converter that transmits the data sent by serial equipment as TCP/IP data type, and converts back the TCP/IP data received through the network into serial data to transmit back to the equipment

It complies with industrial temperature standard and supports the serial interface of RS-232.

Hardware Specification

WIZ107SR Module

  • TCP/IP : W7100A
  • PHY : Embedded in W7100A
  • RJ-45 : BS-RB10005 (Transformer Integrated)
  • MCU : 8051 (W7100A) : SRAM : 64K Byte, FLASH-64Kbyte, 2Kbyte Boot ROM
  • Serial : 3.3V LVTTL or RS-232

Base Board

  • Module Interface : 6×2 2.54mm Pin Header (Male)
  • Serial Connector : D-SUB, 9PIN, Right Angle, Male
  • RS-232 Transceiver : SP3232EBEY (optional)
  • Power : DC Jack mounted (External : 4.5Ø, Internal :1.3Ø)


  • Power Adaptor (5V, 2A), UTP LAN Cable (2M), Serial Cable, WIZ107SR-CBL (connection cable between module & base board)

Base Board Type

To test WIZ107SR-232 versionTo test WIZ107SR-TTL version

WIZ107SR Ordering Information

Part NoDescription
WIZ107SR-232Serial : RS-232 (RS-232 transceiver mounted)
Network : RJ-45 (Transformer integrated)
WIZ107SR-TTLSerial : TTL
Network : RJ-45 (Transformer integrated)
WIZ107SR-232-EVBEvaluation Board for WIZ107SR-232 board
WIZ107SR-TTL-EVBEvaluation Board for WIZ107SR-TTL board